AUTHOR=Freire Marco Aurelio M., GuimarĂ£es Joanilson S., Gomes-Leal Walace , Pereira Antonio TITLE=Pain modulation by nitric oxide in the spinal cord. JOURNAL=Frontiers in Neuroscience VOLUME=3 YEAR=2009 URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/neuro.01.024.2009 DOI=10.3389/neuro.01.024.2009 ISSN=1662-453X